Circular loom



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A. DE LASKI.

CIRCULAR LOOM.

No. 375,135. Patented Deo. 20, 1887.

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(No Model.) 5 Sheets-Sheet 2. A. DE LASKI.

CIRCULAR LOOM.

Patented Dec. Z0, 1887.

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' CIRCULAR LOOM. No. 875,135. Patented Deo. 20, 1887.

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A. DE LASKI.

CIRCULAR LOOM.

No. 375,135. Patented Dec. 20,

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(No Model.) 5 Sheets-Sheet 5.. A. DE LASKI.

CIRCULAR LOOM.

S E S S E N T W me n rw S UNITED STATES PATENT OFFICE.

ALBERT DE LASKI, OF LYNN, MASSACHUSETTS.

CIRCULAR LOOM.

SPECIFICATION forming part of Letters Patent No. 375,135, dated December20, 1887.

Application filed Octoberl, 1885. Serial No.179,960. (No model.)

To @ZZ whom it may concern.-

Be it known that I, ALBERT DE LAsKI, of Lynn, in the county of Essex andState of Massachusetts, have invented certain new and usefulImprovements in Circular Looms, of which the following is aspecification.

This invention consists in ccrtain'improvements in circular loomsrelating to the means for impelling the shuttles, the heddle motion, andother details, all as described and claimed hereinafter.

Of the accompanying drawings, forming a part of this specification,Figure 1 represents a vertical central section of portions of a circularloom, showing the shuttle-operating mechanism, the heddles and a part oftheir operating mechanism being omitted. Fig. l represents a section online x,Fig. l. Fig. 2represents a top View of a part of theshuttledriving mechanism. Fig..3 represents atop view, partly sectioned,of a portion of the loom, showing the heddle-operating mechanism,certain features being omitted for the sake of clearness. Fig. 4 representsa section on line xx, Fig. 3, looking toward the right, Fig. 5, a sideview of the parts shown in sectional end elevation in Fig. 4, exceptingthe beam. Fig. 6 represents a side elevation ofthe feedrolls and theiroperating mech anism,wi`thparts of the supports for the latter insection. Fig. 7 representsa section on line y y, Fig. 6, looking towardthe left. Fig. 8 represents a top View, and Fig. 9 an end view, of thefeed-rolls and connected parts. v

The same letters of reference indicate the same parts in all thefigures.

In the drawings, a represents the circular track or race on which theshuttles b move. Said track is supported by vertical standards c. Eachshuttle consists of a frame, 2, abobbin,5, journaled in said frame, andwheels 3 34, adapted to run on the circular track a, the wheels 3 Satthe outer side of the carriage being larger than the wheel 4 at theinner side. The weft thread from the bobbin 5 passes through a tubularguide, 6, inthe inner side of the shuttle-frame, and therefore acts tohold the inner side of the shuttle down upon the track a. The tubularguide 6 also forms the journal for the wheel 4.

Each shuttle is driven by means of a frictionwheel, d, which is rotatedwhile in contact with one of the wheels 3, and is moved over thecircular track a, so as to impart a continuous movement to the shuttle,each Wheel d having a planetary motion. The arbors e, to which thewheels d are affixed, are journaled in bearings in arms f, radiatingfrom ahead, i, which is journaled in a frame or spider, g, supported bythe standards c c. Said head is provided -with a bevel-gear, 71withwhich meshes asi milar gear,j, on a driving-shaft, Za, the headi beingthus rotated and caused to carry the frictionwheels around over thecircular track. The friction wheels are positively rotated while theyare being thus carried over the track by means of bevel-gears Z Z,affixed to the arbors e e, and a bevel-gear, m, affixed to the frame orspider g. The progressive circular movement imparted to the arbors e eby the rotation of the head t', in connection wit-h the gears Z Z andfixed gear m, causes the arbors and their friction-wheels to rotate. Thearm f has a loose pulley, da, which runs on one of the outer wheels, 3,of the shuttle. (See Fig. 2.)

The described mechanism for impelling the shuttles constitutes animportant part of my invention, and is distinguished from mechanismheretofore used for the purpose by its simplicity and freedom fromliability to derangement andbreakage. rotates the arbors of thefriction-wheels, is located between said wheels andthe center, aboutwhich they move on the track, the arbors extending inwardly from thefriction-wheels.

Heretofore in this class of looms -said arbors have extendedoutwardlyfrom the frictionwheels and'have been rotated by a large fixedgear surrounding the space in which the friction-wheels were located.Said arrangement involves much greater friction between the fixed gearand the gears on the arbors, as well as greater liability of breakingthe teeth of said gears than is met with in my improved loom.

The warpth reads pass from a series of beams, e', journaled in bearingson the supportingframe through guides o3,` and from thence through theheddles to the-central tube, wh ere the warp and woof threads areinterwoven to form the tubular fabric, the latter being drawn throughthe tube by suitable means,as hereinafter described. The shuttles pass,as usual, through the shed formed by the raised and depressedwoof-threads,the wheels ofthe shuttles, passing over the depressedthreads, while the The fixed gear on, that` TOO raised threads passbetween the frictionwheels and the shuttle-wheels, as shown in Fig. 1.

The heddle-frames o o are arranged in pairs and in a circular series, asusual, and move on vertical rods q q, affixed to the supportingframe.The lower' portions of the heddleframes in each pair are connected bystraps or chains 29 p, passing around loose pulleys r, which, with theirsupporting-brackets S S, are vertically adjustable. Such adjustment issecured by providing each bracket with an eX- ternally-threadeddepending spindle, S,which engages a vertically-threaded recess in asocket, Si, secured to and projecting from the heddle-framc supports. Anut, S3, engages the projecting portion of each spindle S' and locks itin its adjusted position.

The upper portions of the heddleframes of cach pair are connected bychains t t, passing over and engaged with sprocket-wheels u on arbors o,jonrnaled in bearings on the supporting-frame. Said arbors are rocked orrorated alternately in opposite directions by means of reciprocating.racks iv, fitted to slide in guides on the frame, and pinions a, affixedto the arbors c. The racks w are provided with extension-bars w', havingstuds or rollers b on their inner ends entering a grooved cam, c',affixed to the head z". Said'cam is formed so that when it is rotated itsimultaneously retracts the racks at one side and projects those at theopposite side, as shown in Fig. 3. The movements thus imparted to theracks w and arbors o cause the sprocket-wheels n and chains t toreciprocate the heddles, the hed` dles of each pair being movedsimultaneously in opposite directions, as usual. The ends of the wiresof the heddles are inserted in slots d d', cut in the heddle-frames,said slots being made in two series, as shown in Fig. 5.

Each beam c that supplies the warp-threads is provided with a brakecomposed of a cord, f, secured at one end to the frame and passed aroundthe end of the beam, its other end being attached to a rod, r/, which ispressed by a spring, h, so as to cause the cord f to bind upon theperiphery of the beam end. The woven tubular fabric is grasped and drawnalong, so as to keep the proper tension on the warp-threads, by means ofrolls 72, 71,', journaled in bearings t" and driven by a connection withthe driving-shaft 7c, said connection being shown as abevel-gear, k', onthe shaft k, a vertical shaft, Z', having a bevel-gear, m', meshing withthe gear 7c", a horizontal shaft, m", connected by gears a o with theshaft Z', and the gears p Q i", whereby motion is communicatcd from theshaft mi to the arbor of one of the rolls h', the arbors of the tworolls being connected by gears s.

The gear p is mounted on shaft mi. The gear q is'mounted on a stud on alever, t', pivoted to said frame, so that it can be moved to throw thegear q into and out of engagement with the gear o".

By reference to Fig. 7 it will be noted that t? designates aslotted armextending integrally from the lever t', and the said arm and the slottherein are curved concentric with the pivot of the lever t. One of theframe-supports is provided with an arm, t5. rlhe lever-arm is designedto move in close proximity to the arm t5, so that a bolt, t, on thelatter will play along the curved slot in the arm t2 as the levert israised or depressed. A nut, t4, engaging the threaded end of the bolt,is designed to rigidly lock the bolt t3 at any desired point along saidslot, so that the levert may be rig idly secured in any position towhich it may beY moved. By such construction the gearwheel q may berigidly locked in engagement with the gear-wheel r. The gear r is pro--vided with a hub, o', adapted to slide on the arbor a2 of one of therolls 7L. One end of said hub is formed as a clutch member to engage acorresponding member, b2, aiiixed to the arbor a2. A spring, ci,normally holds the two members in engagement, as shown in Fig. 6. Alever, d2, Jivotcd at c2 to the supporting-frame, is engaged with thehub of the gear i" by means oi" rollers on the lever entering a groovein the hub, Fig. S, so that a movement of the lever against the pressureof the spring c2 will separate the clutch members, and therefore stopthel rotation of theiolls h. Ahandwheel, g2, is attached to the arbora2, so that the rolls can be rotated by hand when. desired. W'hen thisis done, the gear q is thrown out of engagement with the gear fr bymeans of the lever t'.

The rolls 7i are grooved at kiki, said groove receiving the edges of theflattened woven tube which passes between the rolls, sothat said edgesare not creased by the rolls.

One of the principal uses of my improved loom is to weave a coveringupon a tube of rubber `which lis passed through a tubular guide, a3,within the head i and a tubular weaving-pin, bi, secured to the lowerend of said guide.

To guide the rubber tube and prevent it from twisting I provide at asuitable point within the tubular guide or within the weaving-pin(preferably the latter) a guide or projection, c3, which causes'therubber tube ea to assume a horseshoe form in crosssection before itenters the tubular woven covering.

It will be seen that the guide or projection c3 prevents the tube fromturning or twisting, and thus insures its deliveryin a straightcondition into the woven covering. The tube is subsequently expanded bysteam and caused to adhere to the woven covering.

1. The combination of the circular track a, a shuttle adapted to travelthereon, outer wheels, 3 3, on said shuttle, and inner wheel, 4, all ofsaid wheels bearing directly upon the track, a head, t', gearing forrotating thesame, a horizontal radial arm, f, an arbor mounted inbearings in said arm, gearing for rotating said arbor from the rotarymovement of the head, and a friction-wheel, d, located on the IIO outerend of the arbor and bearing directly upon the periphery of one of theWheels 3, and a second friction-wheel, d3, mounted on the arm f andbearing directly upon the periphery of the other wheel 3, substantiallyas set forth.

2. The combination of, the heddle and heddle-frames and theheddle-operating mechanism, consisting of the arbors connected, asdescribed, wth the heddle and heddle-frames, and provided with pinions,the radiating racks engaged with said pinions, and the cam and means forrotating it, whereby said racks are reciprocated, as set forth.

3. The combination of the circular track a, a shuttle adapted to travelthereon and provided with a wheel, 3, on its outside and with a'tubularguide, 6, on its inner side, a Wheel, 4, mounted on said guide, a head,z', gearing for rotating said head, and devices for driving said shuttlefrom said head, substantially as set forth.

4;. The combination, with the race, shuttle, heddles, heddle-frames,beams, and operating devices for said shuttle and heddle-frames, of atubular weaving-pin, b3, having an internal projection, a pair ofhorizontal rolls for receivingV the fabric from said weaving-pin,gearing for driving said rolls to feed the fabric, a gearwheel mountedon the shaft of one of said rolls,

and a clutch device for permitting the engage'- m heddles,heddle-frames, beams, and operating devices for said shuttle andheddle-frames, of a tubular weaving-pin, b3, having an internalprojection, a pair of horizontal rolls geared together and receiving thefabric fromsaid weaving pin, a drivinggear, r', a driving 4means, alever, t', provided with a gear-wheel, q', rotated by said driving meansand adapted to be moved by said lever into and out of mesh with thewheel r', and devices for locking said lever in an engaged or disengagedposition, substantially as set forth.

6. The combination, with a weaving-pin, b internal projection, c3,therein, and devices, substantially as described, for weaving a tubularfabric, of a pair of feed-rolls adapted to receive a tubular fabric andprovided with peripheral grooves to accommodate the edges of saidfabric, substantially as set forth.

7. The combination, with atubular weaving pin or guide, of devices,substantially as described, for Weaving a tubular fabric at the end ofsaid pin or guide, and an internal projection located on one side insaid pin or guide for bending the woven tube, substantially as setforth.

In testimony whereof I have signed my name to this specification, in thepresence of two subscribing witnesses, this 6th day of October, 1885.

Witnesses:

C. F. BROWN, H. BROWN.

